Quote:
Originally Posted by JFP in PA
Simple: Overheating any engine entails risk of component failures, particularly an aluminum alloy engine, it is very risky business. We have had to replace multiple engines that suffered from that. Overheating can thermal expansion that can cause components to warp or lose structural integrity. Cylinder head cracking, and cylinder liner problems can result.
When we get one in that has been overheated, we typically run some extra diagnostics (pressure test the cooling system looking for signs of internal cracking, and run a leak down test on the cylinders) before returning the car to the customer, just to prevent any "come backs" from problems introduced by the thermal excursion.
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Understood, and completely agree with everything you stated. I've owned a lot of different vehicles with different engine setups (iron block and heads, iron block aluminum heads, aluminum block and heads, etc.,) and understand what can happen when things get too hot. I have not completely familiarized myself with these engines.
I was more fishing for a response like "90% of these engines that I see, when overheated, result in cracked heads" or "if these engines see 250*F they are almost guaranteed to have cracked heads". Or better yet how about "nah, as long as it was shut down very quickly you should be fine", THAT was my wishful thinking. Lol
Some of the stories I have read on this forum have included drivers running their cars for extended times trying to make it home or to a dealership while the engine is overheating and the end results were not catastrophic. While in my case, it was shut down as quickly as possible and may have not even hit the 250 mark.
Either way, I am replacing the water pump and t-stat, flushing the coolant, adding the coolant under vacuum with the airlift tool, and then I will see how it ends up. The tank and cap have both been replaced. Fingers crossed.
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